Violet Victoria Atkinson from Ballarat Australia. Later Green and Carter

Looking for family of Violet Victoria Green or Carter. Violet Atkinson married John Green in Ballarat, Australia in 1904. They went to NZ sometime after this date and later Violet married Frederick Carter in Port Charmers or Dunedin. My grandmother, Cora Atkinson was Violet's sister and I am trying to trace her family in NZ. Please contact me if you can help.